Yarn-winding machine.



J. BROOKS.

YARN WINDING MACHINE.

APPLICATION FILED NOV. 14, 1913 Patented Dec. 8, 1914.

2 SHEETB-SHEET 1.

J. BROOKS.

YARN WINDING MACHINE APPLICATION FILED NOV. 14, 1913.

Patented Dec. 8

2 SHEETBSHEET 2.

TED STATES PATENT OFFICE.

JOHN BROOKS, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO JACOB K. ALTEMUS, 0F PHILADELPHIA, PENNSYLVANIA.

YARN-WINDING MACHINE.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed November 14, 1913. Serial No. 800,967.

To all whom it may concern:

Be it known that I, JOHN BROOKS, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Yarn-Winding Machines, of which the following is a specification.

My invention relates to means for building up the body of yarn upon a bobbin as it is being wound thereon, the object of my invention being to provide simple and efficient means for gradually changing the position of the yarn delivery guide in respect to the bobbin, and means for arresting the building movement of said yarn guide when the rotation of the bobbin is arrested. These objects I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of yarn winding mechanism constructed in accordance with my invention and representing the mechanism employed in connection with each of the winding spindles; Fig. 2 is a plan or top view of the same; Fig. 3 is a view, partly in side elevation and partly in longitudinal section, of certain parts of the mechanism for imparting intermittent movements of partial rotation to the builder nut; Fig. 4: is a view, partly in side elevation and partly in longitudinal section, showing the connection between the builder nut and the screw, and Fig. 5 is a side view, on a reduced scale, of the means for rotating the spindle.

In the drawings, 1 represents the fixed rail to which are secured, side by side, a series of projecting brackets 1*, each carrying a bearing for one of the bobbin-rotating spindles 2, and 3 represents the vertically reciprocated builder rail upon which are mounted a series of builder screws 4, one for each spindle. The rotation of the spindles 2 and the means for rotating the bobbins from said spindles may be varied without departing from my invention. In the present instance, I have shown the spindle 2 as provided with a horizontal disk 5 which is rotated ,by contact with the periphery of a vertical disk 6 on a horizontal driving shaft 7, as shown in Fig. 5, and the rotation of the bobbin by the spindle is effected by means of a disk 8 provided with a washer 9 which, by frictional contact with the base of the bobbin 10, serves to rotate the latter uniformly with the disk 8. Some means must, however, be provided for arresting the rotation of the bobbin when necessary without arresting the rotation of the driving shaft 7, and such means is provided in the present instance, by a slotted cam 11 introduced between the base of the disk 8 and the top of the bearing 1*, this slotted cam serving, when in one position, to lower the spindle 2 and disk 8 so as to bring the disk 5 into driving contact with the disk 6 and thereby impart' rotating movement to the bobbin, and when in the other position to raise the disk 8 and spindle 2 so as to carry the disk 5 out of driving contact with the disk 6 and thereby arrest the rotation of the bobbin.

Mounted upon and reciprocating vertically with the builder rail 3 is a bracket 12, upon which is pivotally mounted a pawl 13 acted upon by a spring 14 so as to be pressed toward the teeth of 'a ratchet Wheel 15, which is secured to the hub of a bevel wheel 16 (Fig. 3) mounted so as to be free to turn upon a stud 17 projecting from a collar 18, the latter in turn being freely mounted upon a vertical shaft 19, so that rotation of the latter has no tendency to rotate the collar 18.

Meshing with the bevel wheel 16 is a bevel wheel 20, whose hub is splined upon the shaft 19 whereby any rotating movement of said bevel wheel 20 will be imparted to the shaft. The bevel wheel 20 is free to slide vertically on the shaft 19 and is supported upon a slotted cam 21 which, when in the position shown in Fig. 3, that is to say, with the bevel wheel 20 mounted upon the high portion of the cam,/ maintains said bevel wheel in mesh with the bevel wheel 16. When, however, the slotted cam 21 is moved so as to bring its low portion beneath the bevel wheel 20 the latter can drop on the shaft 19 so as to carry its teeth out of mesh with those of the bevel wheel 16, and thereby prevent any movements of the latter from being imparted to the shaft 19.

The slotted earns 11 and 21 are carried, respectively, by the arms of a lever 22 pivotally mounted upon an arm 23 projecting from the bearing 1, whereby, when said lever is moved in one direction the disk 8 will be raised by the cam 11 so as to disconnect the spindle 2 from driving connection with the shaft 7 and the bevel wheel 20 will simultaneously be lowered by the cam 21, so as to disconnect the bevel wheels 16 and 20, thereby at one and the same time arresting the rotation of the bobbin 10 and shaft 19. When the lever 22 is moved in the opposite direction the spindle 2 will be lowered into driving connection with its operating shaft and the bevel wheel 20 will be raised into mesh with the bevel wheel 16, thereby, at one and the same time, resuming the rotation of the bobbin 10 and shaft 19.

Splined to the shaft 19 is a spur pinion 24 meshing with a spur wheel 25 and having upper and lower collars 26 and 27 which overlap said spur wheel and maintain the pinion in line therewith, as shown in Fig. 1. The spur wheel 25 has a depending hub 28 free to turn on the builder screw 4, as shown in Fig. 4, and on the upper face of said spur wheel 25 is pivotally mounted an arm 29 acted upon by a coiled spring 30 which serves to maintain the inner face of said arm 29 in engagement with the thread of the builder screw 4 but permits saidarm 29 to be swung outwardly so as to free it from engagement with said thread when it is desired to disconnect the spur wheel 25 from the builder screw.

Secured to the spur wheel 25 and depending therefrom is an inverted cup 31 and between the hub 32 of this cup and lock nuts 33 at the lower end of the hub 28 is interposed a ring 34, which surrounds said hub 28 and is thus caused to partake of any rising or falling movement of the spur wheel 25 on the builder screw 4 but is free from rotative connection with said spur wheel. The ring 34 has three arms 35, 36 and 37, the arm 35 engaging at its outer end a vertical rod 38 projecting upwardly from the builder rail and serving to guide the ring 34 and its arms 36 and 37 during their vertical movements. The arm 36 carries the guide 40 whereby the yarn is directed onto the bobbin, and the arm 37 carries the preliminary yarn guide 41 and a pair of friction plates 42 through which the yarn passes in its course from the preliminary guide 41 to the delivery guide 40.

During the winding operation the builder rail 3 reciprocates vertically and carries with it the parts mounted thereupon, that is to say, the builder screw 4 and the parts.

carried thereby, the guide rod 38, and the pawl 13. On the rise of the rail 3 said pawl 13 is disengagedfrom the ratchet wheel 15 and pressed inwardly by the spring 14 until it contacts with a stop bar 43 mounted upon the bracket 12, whereby, when the builder rail 3 descends, said pawl 13' will, before said rail 3 reaches the limit of its descent,

engage with a tooth of the ratchet wheel 15 and will then impart forward movement to said ratchet wheel until the builder rail 3 has been fully lowered. The movement thus imparted to the ratchet wheel 15 is transmitted through the bevel wheels 16 and 20, shaft 19, and spur pinion 24, to the spur wheel 25 which'is'partially turned, thereby causing said spur wheel to act as a nut and rise to a certain extent on the thread of the builder screw owing to the engagement of the arm 29 on the spur wheel with the thread of the screw 4. As a consequence ofthis movement, repeated on each reciprocation of the builder rail 3, the yarn guides 40 and 41 will, upon each downward termination of such movement, occupy .a slightly higher position in respect to the bobbin than before, thus progressively raising the successive layers of yarn wound upon the bobbin and gradually building up the yarn body throughout the length of said bobbin.

Whenever, however, the rotation of the bobbin is arrested, the progressive elevation of the yarn guides will also be arrested, owing to the connection between the devices which govern the rotation of the spindle 2 andgovern the rotation of the carrying nut mounted thereon, a non-reciprocating shaft geared to said nut and to a ratchet wheel, and a reciprocating builder rail carrying a pawl for engaging said ratchet wheel. 1

2. The combination, in a yarn winding machine, of a bobbin, means for rotating the same, a builder screw, a yarn-guide-carrying nut engaging the same, a shaft geared to said nut by means of a spur Wheel and a spur pinion splined upon the shaft and having collars overlapping the pinion, a reciprocating builder rail, and means whereby said builder rail is caused to impart intermittent movements of partial rotation to said shaft as it approaches the limit of its movement.

3. The combination, in a yarn winding machine, of a bobbin, means for rotating the same, a reciprocating builder rail, a builder screw carried thereby and recipro-' eating therewith, a yarn-guide-carrying nut mounted on said screw, a shaft geared to said nut, means for imparting intermittent movements of partial rotation to said shaft, means for arresting rotation of the bobbin at will, and means for arresting the rotation of said shaft at will without arresting the reciprocating movements of the builder rail.

4. The combination, in a' yarn winding machine, of a bobbin, means for rotating the same, a reciprocating builder rail, a builder shaft at will without arresting the reciproeating movements or the builder rail, and

means for connecting said arresting devices 10 for joint and simultaneous operation.

In testimony whereof, I have signed my name to this ecification, inthe presence of two subscribing witnesses.

- JOHN BROOKS.

Witnesses:

J osnrn P. Pnmmnnn, JACOB H. BLAmz. 

